Table 1.

Characteristics of cases and non-cases, UoC cohort (n = 3980)

Characteristic	Overall		Cases		Non-cases
Gender
Male	1666	41.9%	38	38.4%	1522	42.1%
Female	2193	55.1%	57	57.6%	1989	55.0%
Other	43	1.1%	0	0.0%	41	1.1%
Missing	78	2.0%	4	4.0%	65	1.8%
Age (years)
Median	21		20		21
Range	16–50		18–42		16–50
Ethnicity
White	2935	73.7%	84	84.8%	2659	73.5%
Indian	130	3.3%	3	3.0%	120	3.3%
Pakistani	25	0.6%	0	0.0%	21	0.6%
Other Asian/Asian British	457	11.5%	2	2.0%	431	11.9%
Black	44	1.1%	1	1.0%	38	1.1%
Mixed	172	4.3%	6	6.1%	154	4.3%
Other	73	1.8%	2	2.0%	68	1.9%
Missing	144	3.6%	1	1.0%	126	3.5%
Student type
Undergraduate	2386	59.9%	78	78.8%	2108	58.3%
Postgraduate	1581	39.7%	20	20.2%	1499	41.4%
Missing	13	0.3%	1	1.0%	10	0.3%